Speaker
hengyuan guo
(Sun Yat-sen university/Pisa university)
Description
In 1+1 dimensions, soliton quantum states are usually described by coherent states, but as Coleman noted in his 1975 Erice lectures, this approach fails in higher dimensions because of divergent energy densities. We show that even in 1+1 dimensions the proper states are deformations of coherent states. In the 3+1-dimensional ϕ4 double-well model, the leading deformation—a squeeze—already removes the one-loop divergence in the domain wall soliton’s energy density
Primary author
hengyuan guo
(Sun Yat-sen university/Pisa university)
Co-authors
Mr
Baiyang zhang
(Henan University)
Mr
Jarah Evslin
(Institute of modern physics)
Mr
hui liu
(Yerevan Physics Institute)